Document
Standard ICs
BU2090 / BU2090F / BU2090FS / BU2092 / BU2092F / BU2092FV
12-bit, serial IN, parallel OUT driver
BU2090 / BU2090F / BU2090FS / BU2092 / BU2092F / BU2092FV
The BU2090, BU2090F, BU2090FS, BU2092, BU2092F, and BU2092FV are 12-bit serial input, parallel output drivers. For the BU2090 / F / FS, data input is shifted to the 12-bit internal shift register on the rising edge of a clock pulse. On the falling edge of the pulse, if the DATA pin is HIGH, the data in the shift register is output in parallel to Q0 to Q11. For the BU2092 / F / FV, shift data read at the rising edge of CLOCK is output in parallel to Q0 to Q11 at the rising edge of LCK. These ICs also have an OE pin, which when HIGH, forces data to be output, regardless of the shift data state.
Applications • Radio cassette players, telephones, compact audio systems, car stereos, and others
Features • 1) Low power dissipation. 2) Operating voltages ranging from 2.7 to 5.5V. 3) Output is Nch open drain. 4) High output withstand voltage of + 25V.
5) Diverse variety of packages. BU2090 / F / FS: DIP16, SOP16, SSOP-A16 BU2092 / F / FV: DIP18, SOP18, SSOP-A18 (plastic molds) 6) High drive capability; direct lighting of green LED possible.
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Standard ICs
maximum ratings (Ta = 25°C) •Absolute (BU2090 / F / FS, BU2092 / F / FV)
Parameter Power supply voltage Power dissipation Power dissipation BU2090 / F / FS BU2092 / F / FV BU2090 / F / FS BU2092 / F / FV Symbol VDD Pd Limits – 0.3 ~ + 7.0
BU2090 / BU2090F / BU2090FS / BU2092 / BU2092F / BU2092FV
Unit V mW
1000 (DIP), 300 (SOP), 500 (SSOP)∗1 1050 (DIP), 450 (SOP), 400 (SSOP)∗1 500 (SOP)∗2, 650 (SSOP)∗3 500 (SOP)∗2, 650 (SSOP)∗4 – 25 ~ + 75 – 55 ~ + 125 VSS – 0.3 ~ VDD + 0.3 VSS ~ 25.0
Pd Topr Tstg VIN VO
mW °C °C V V
Operating temperature Storage temperature Input voltage Output voltage
∗1 Unmounted ∗2 When mounted on a glass epoxy board of 50mm × 50mm × 1.6mm ∗3 When mounted on a glass epoxy board of 90mm × 50mm × 1.6mm ∗4 When mounted on a glass epoxy board of 70mm × 70mm × 1.6mm
•Recommended operating conditions
Parameter Power supply voltage Symbol VDD Limits 2.7 ~ 5.5 Unit V
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Standard ICs
BU2090 / BU2090F / BU2090FS / BU2092 / BU2092F / BU2092FV
•Block diagram
BU2090 / F / FS BU2092 / F
VSS 1 VSS 1 DATA 2 CLOCK 3 Q0 4
Output buffer (open drain)
Control circuit
18 VDD 17 OE
Control circuit 12-bit shift register Latch
16 VDD 15 Q11
DATA 2
12-bit shift register
CLOCK 3
14 Q10
16 Q11
112-bit storage register
LCK 4
13 Q9
15 Q10 14 Q9 13 Q8 12 Q7 11 Q6 10 Q5
Q0 5
12 Q8
Q1 5 Q2 6 Q3 7 Q4 8
Output buffer (open drain)
Q1 6
11 Q7
Q2 7
10 Q6
Q3 8
9 Q5
Q4 9
BU2092FV
VSS 1 DATA 2
12-bit shift register
Control circuit
20 VDD 19 OE 18 Q11
CLOCK 3 LCK 4 Q0 5 Q1 6 Q2 7 Q3 8 Q4 9 Q5 10
12-bit storage register
17 Q10 16 Q9 15 Q8 14 Q7 13 N.C. 12 N.C. 11 Q6
Output buffer (open drain)
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Standard ICs
BU2090 / BU2090F / BU2090FS / BU2092 / BU2092F / BU2092FV
•Pin descriptions
Pin No. BU2090 / F / FS 1 2 3 — 4 5 6 7 8 9 10 — — 11 12 13 14 15 — 16 BU2092 / F BU2092 / FV 1 2 3 4 5 6 7 8 9 10 11 — — 12 13 14 15 16 17 18 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Pin name VSS DATA CLOCK LCK Q0 Q1 Q2 Q3 Q4 Q5 Q6 N.C. N.C. Q7 Q8 Q9 Q10 Q11 OE VDD GND Serial data input Data shift clock input Data latch clock input Parallel data output Parallel data output Parallel data output Parallel data output Parallel data output Parallel data output Parallel data output Not connected Not connected Parallel data output Parallel data output Parallel data output Parallel data output Parallel data output Output Enable Power supply Function
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Standard ICs
characteristics (Ta = 25°C) •Electrical DC characteristics (unless otherwise noted, Ta = 25°C, V
Parameter Input high level voltage Symbol VIH Min. 3.5 2.5 — VIL — — VOL IOZH IOZL IDD — — — — — Typ. — — — — — — — — — —
BU2090 / BU2090F / BU2090FS / BU2092 / BU2092F / BU2092FV
SS
= 0V)
Unit V VDD 5 3 5 3 5 3 5 5 5 3 IOL = 20mA IOL = 5mA VO = 25.0V VO = 0V VIN = VSS or VDD OUTPUT: OPEN — Conditions —
Max. — — 1.5 0.4 2.0 1.0 10.0 – 5.0 5.0 3.0
Input low level voltage
V
Output low level voltage "H" output disable current "L" output disable current Current dissipation
V µA µA µA
BU2090 / F / FS switching characteristics (unless otherwise noted, Ta = 25°C, VSS = 0V)
Parameter Minimum clock pulse width Symbol tW Min. 500 1000 200 300 200 400 50 100 250 500 200 400 250 500 Typ. — — — — — — — — — — — — — — Max. — — — — — — — — — — — — — — ns ns ns ns ns ns ns Unit VDD 5 3 5 3 5 3 5 3 5 3 5 3 5 3 — — — — — — Conditions —
Data shift setup time
tSU
Data shift hold time
tH
Data latch setup time
tLSUH
Data latch hold time
tLHH
Data latch "L" setup time
tLSUL
Data latch "L" hold time
᭺Not designed for radiation resistance.
tLHL
BU2090 / F / FS switching characteristics measurement conditions
tW tW 90% 10% tH tLSUL tLHL 10% tLSUH 10% tLHH
CLOCK
90% 10% tSU
90%
VDD
GND (VSS)
DATA
90%
90% 10% 10%
90%
90%
VDD
GND (VSS)
F.